Description
KY-035 Hall Magnetic Sensor Module 49E for Arduino
The KY-035 Hall Magnetic Sensor Module is an easy-to-use analog sensor for detecting magnetic fields. Based on the 49E linear Hall effect sensor, it outputs a voltage proportional to the strength of the magnetic field. This makes it ideal for DIY electronics, robotics, and Arduino starter projects.
Key Specifications
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Model: KY-035
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Sensor Type: 49E linear Hall effect sensor
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Operating Voltage: 3.3V – 5V
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Output Type: Analog (continuous)
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Pins:
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AO: Analog output
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GND: Ground
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VCC: Power supply
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Module Dimensions: Compact and breadboard-friendly
Features and Benefits
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Simple 3-pin interface for quick integration
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Analog output allows precise magnetic field strength measurement
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Compatible with Arduino, Raspberry Pi, and other microcontrollers
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Useful for proximity detection, speed measurement, and motor control
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Reliable and low power consumption
Applications
This KY-035 analog Hall magnetic sensor is widely used in:
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Arduino and DIY starter kits
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Proximity switches
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Speed detection and tachometers
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Robotics navigation
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Motor RPM monitoring
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Contactless position sensing
How to Use the KY-035 Hall Sensor
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Wiring:
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Connect VCC to 5V (or 3.3V for some boards).
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Connect GND to ground.
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Connect AO to an analog input pin on your Arduino (e.g., A0).
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- Arduino Code Example:
int sensorPin = A0;
int sensorValue = 0;
void setup() {
Serial.begin(9600);
}
void loop() {
sensorValue = analogRead(sensorPin);
Serial.println(sensorValue);
delay(200);
}
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Bring a magnet close to the sensor.
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The analog value changes depending on magnetic field strength.
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⚠️ Note: This module is analog (KY-003 is the digital version). Use it when you need variable field strength detection, not just ON/OFF.
Package Includes
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1 x KY-035 Hall Magnetic Sensor Module
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